Saudi Arabia pulled off a shock 2-1 win against one of the pre-tournament favourites Argentina ©Getty Images

Photo gallery

Saleh Al-Shehri slid the ball past Emiliano Martínez to cancel out Lionel Messi's first-half penalty ©Getty Images
Saleh Al-Shehri slid the ball past Emiliano Martínez to cancel out Lionel Messi's first-half penalty ©Getty Images
Five minutes later, Salem Al-Dawsari gave Saudi Arabia the lead with a curling effort into the top corner ©Getty Images
Five minutes later, Salem Al-Dawsari gave Saudi Arabia the lead with a curling effort into the top corner ©Getty Images
The defeat is a surprise early hiccup in Lionel Messi's final attempt at the World Cup trophy in his playing career ©Getty Images
The defeat is a surprise early hiccup in Lionel Messi's final attempt at the World Cup trophy in his playing career ©Getty Images
Olivier Giroud equalled Thierry Henry's goalscoring record for France in the country's 4-1 over Australia ©Getty Images
Olivier Giroud equalled Thierry Henry's goalscoring record for France in the country's 4-1 over Australia ©Getty Images
The AC Milan striker scored a brace to take his international total up to 51 goals ©Getty Images
The AC Milan striker scored a brace to take his international total up to 51 goals ©Getty Images
Craig Goodwin gave the Socceroos an unexpected lead inside 10 minutes following a surging run to the back post ©Getty Images
Craig Goodwin gave the Socceroos an unexpected lead inside 10 minutes following a surging run to the back post ©Getty Images
The Australian advantage lasted just 18 minutes as Adrien Rabiot nodded France level while Kylian Mbappe also got on the scoresheet ©Getty Images
The Australian advantage lasted just 18 minutes as Adrien Rabiot nodded France level while Kylian Mbappe also got on the scoresheet ©Getty Images
Andreas Cornelius missed a golden opportunity for Denmark as they were held to a 0-0 draw by Tunisia ©Getty Images
Andreas Cornelius missed a golden opportunity for Denmark as they were held to a 0-0 draw by Tunisia ©Getty Images
Poland and Mexico also drew 0-0 as Robert Lewandowski failed to score his first World Cup goal as his penalty was saved by Guillermo Ochoa ©Getty Images
Poland and Mexico also drew 0-0 as Robert Lewandowski failed to score his first World Cup goal as his penalty was saved by Guillermo Ochoa ©Getty Images